2003 Fiat Siena vs. 2003 Opel Astra
To start off, both 2003 Fiat Siena and 2003 Opel Astra were released in the same year (2003). Therefore the support and the availability on parts for both vehicles should be relatively similar. At 1,796 cc (4 cylinders), 2003 Opel Astra is equipped with a bigger engine. In terms of performance, 2003 Opel Astra (123 HP @ 5600 RPM) has 64 more horse power than 2003 Fiat Siena. (59 HP @ 5200 RPM) In normal driving conditions, 2003 Opel Astra should accelerate faster than 2003 Fiat Siena. With that said, vehicle weight also plays an important factor in acceleration. 2003 Opel Astra weights approximately 270 kg more than 2003 Fiat Siena. So despite on having greater horse power, its additional weight may have an impact towards its acceleration in comparison.
Both vehicles are front wheel drive (FWD). Which offers better traction when its slippery than rear wheel drive vehicles. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2003 Opel Astra (171 Nm @ 3800 RPM) has 68 more torque (in Nm) than 2003 Fiat Siena. (103 Nm @ 2500 RPM). This means 2003 Opel Astra will have an easier job in driving up hills or pulling heavy equipment than 2003 Fiat Siena. 2003 Opel Astra has automatic transmission and 2003 Fiat Siena has manual transmission. 2003 Fiat Siena will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2003 Opel Astra will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2003 Fiat Siena | 2003 Opel Astra | |
| Make | Fiat | Opel |
| Model | Siena | Astra |
| Year Released | 2003 | 2003 |
| Engine Position | Front | Front |
| Engine Size | 1301 cc | 1796 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Valves per Cylinder | 2 valves | 4 valves |
| Horse Power | 59 HP | 123 HP |
| Engine RPM | 5200 RPM | 5600 RPM |
| Torque | 103 Nm | 171 Nm |
| Torque RPM | 2500 RPM | 3800 RPM |
| Engine Bore Size | 70.8 mm | 80.5 mm |
| Engine Stroke Size | 78.9 mm | 88.2 mm |
| Drive Type | Front | Front |
| Transmission Type | Manual | Automatic |
| Number of Seats | 5 seats | 5 seats |
| Number of Doors | 4 doors | 5 doors |
| Vehicle Weight | 1040 kg | 1310 kg |
| Vehicle Length | 4110 mm | 4260 mm |
| Vehicle Width | 1630 mm | 1760 mm |
| Vehicle Height | 1470 mm | 1470 mm |
| Wheelbase Size | 2380 mm | 2700 mm |
